Trolley-wheel.



No'. 854,804. PATENTED MAY 28, 1907; J G GORDREY & P J BRADY v .TROLLEYWHEEL.

ArrLIoATIoN FILED um'. so 1006 UNITED sTATEs PATENT oEEioE.

JOHN C. CORDREY, OF LA JUNTA, COLORADO, AND PATRICK J. BRADY, OF HARVEY.ILLINOIS; SAID BRADY ASSIGNOB TO GEORGE S. CODLING, OF

CHICAGO, ILLINOIS.

TROLLEY-WHEEL.

Patented. ,May 28, 1907.

Application led June 30, 1906. Serial No. 324,217.

T0 all whom it may concern:

Be it known that we, JOHN C. CORDREY, a citizen of the United States,residing at La Junta, county of Otero, State of Colorado, and PATRICK J.BRADY, a citizen of the United States, residing at I-Iarvey, county ofCook, and State of Illinois, have invented a certain new and usefulImprovement in Trolley-Wheels, of which the following is a specificationin the best form now known to us reference being had to the accompanyingdrawing, in which similar numerals pertain to similar parts throughoutthe several views.

Our invention relates to wheels for use upon the ends of trolleys ofelectric vehicles to secure electrical connection between the electricconductor or conductors contained in the trolley andthe trolley Wire.

The object'of our invention is to provide a novel construction oftrolley wheel which is not easily worn by the pressure. of the wheelagainst the trolley wire or rail and which is at the same time in goodelectrical contact with the trolley wire and therefore readily connectsthe trolley Wire to the trolley without undue electrical resistance andconsequent loss of electrical energy.

Our invention consists broadly in making the trolley Wheel of twodifferent metals one of them being a good electrical conductor such asbrass, the other being a metal such as steel or cast iron which readilyresists wear, the wear resisting metal being at the bottom ofthe V inthe trolley wheel rim against which the wire bears as the wheel is used.

More in detail our invention consists in a novel form of construction ofthe wear resisting part of the wheel and in its placement within theelectrical conducting part of the wheel.

It further consists in details of construction which will be hereaftermore fully described and claimed as the specification proceeds.

Again referring to the drawings: Figure 1 is a side view of a wheelembodying our invention, the interior construction being shown in dottedlines. Fig. 2 is a side view of the two wear resisting parts of thewheel placed in their proper position with reference to each other butwithout the brass or other electrical conducting ,outer portion of thewheel. Fig. 3 is a sectional side view of the wheel taken on lines 3-3of Fig. 1. Fig. 4 is a plan view of the part shown in Fig. 2.

Again referring to the drawings numeral 10 indicates the hub of thetrolley wheel made as heretofore stated of brass or other goodelectrical conducting material having cut in its circumference 12 the Vshaped notch 13 in which the trolley. wire, not shown, is adapted tobear. In order to 'provide against undue wear in the bottom of this V 13we embed in the wheel in the course of manufacture usually by castingtwo annular rin s 15 and 16. Each of these rings 15 and 16 as extendingfrom its circumferencethe same number of equal spaced radial teeth orarms 18 and 19 respectively. These teeth or arms 18 and 19 are all ofsuch equal lengths that, as is best shown in Fig. 3, they each eX- ltendup to the level of the bottom of the V 13 in the Wheel rim heretoforedescribed.

In order that the trolley wire may at all times have a bearing againstone of the wear resisting arms 18 or 19 and may at the same time alwaysbe in good contact with the brass of the wheel proper, we place therespective rings 15 and 16 so that their respective arms are as bestshown in Figs. 2 and 4 staggered with reference to each other. Theresult of this is that the brass of the wheel proper fills in the spacebetween two of the radial arms as 19 of one' annular ring directlyopposite to the arm 18 of the opposite ring and that the space betweeneach pair of arms 18 of the second mentioned-ring is filled in withbrass opposite to the wear resisting arm 19 of the first ring.

From this description and the drawings it will be seen that the trolleywire at its point of line of contact in the V shaped annular recess 13in the trolley wheel is substantially all the time in contact withoneradi al arm of the resisting material and the portion of brassfilling in between the two arms of the opposite ring to which said firstarm is adj acent with the result that the trolley wheel is always incontact with a wear resisting arm and an electrical conducting portionof'brass. This with the result that wear in the V 13 is preventedwithout impairing the electrical conductivity of the Wheel.

Having thus described our invention what we claim as new and desire tosecure by Letters Patent is:

1. As an article of manufacture a trolley Wheel having in itscircumference a V shaped recess for the trolley wire there being em- IOObedded in the material of the Wheel proper around the circumference ofthe base of said V a `plurality of portions' of -Wear resisting materialsaid portions of Wear resisting material being staggered with each otherupon opposite sides of the central plane of the Wheel.

2. As an article of manufacture a trolley Wheel comprising two annularrings having projecting from them radial arms as described, the armsupon opposite vrings being made of Wear resisting material and staggeredwith reference to each other as described, said rings and arms of Wearresisting material beingembedded in a Wheel portion proper of conductingmaterial as described, t 5 the Whole being so arranged that the caringportions of said arms como liust at the boitoni of tlie circumferentialV shaped roccss for the trolley Wire in the face of the wheel.

JOHN C. CORDREY. PATRICK J'. BRADY. Vitnesscs to signature John C.Cordrey:

TALTER G. BARRON, JULIAN F. CORDREY. Vitnesses to signature Patrick J.Brady:

EDWARD J. GREEN, DANIEL BRADLEY.

